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Título: | Power optimization of CMOS programmable gain amplifiers with high dynamic range and common-mode feed-forward circuit |
Autor: | Ginés, Antonio J. CSIC ORCID; Doldán, R. CSIC; Rueda, Adoración CSIC ORCID; Peralías, E. CSIC ORCID | Fecha de publicación: | 2010 | Citación: | ICECS 2010: 17th IEEE International Conference on Electronics, Circuits, and Systems | Resumen: | A 1.2V 1.95mW low-power Programmable Gain Amplifier (PGA) with high-input range is proposed and implemented in a 90nm CMOS process. The PGA is formed by three stages with a bandwidth of 20MHz for a 2pF capacitive load. Gain is in the range between 0 and 72dB in steps of 6dB. The stage core consists in a differential super-source follower (SSF) with programmable resistive degeneration. Each stage uses a front-end capacitive decoupling network which allows a robust selection of the operating point for improving linearity and reducing power. Further power saving is achieved with a common-mode feed-forward circuit (CMFFC), based on a simple current conveyor. The total PGA area is 165×33μm2 in a 90nm CMOS process. Post-layout simulations at maximum gain show a THD of -57dB and -42dB for output amplitudes of 0.6Vpp and 1.2Vpp, respectively. Input referred noise is just 10.2nVrms/√Hz from 1MHz to 4MHz. | Descripción: | Trabajo presentado al "ICECS 2010" celebrado en Atenas (Grecia) del 12 al 15 de Diciembre del 2010.-- Publicado como parte del libro: "17th IEEE International Conference on Electronics, Circuits, and Systems (ICECS): 45-48 (2010)"; ISBN: 978-1-4244-8155-2 | URI: | http://hdl.handle.net/10261/84241 |
Aparece en las colecciones: | (IMSE-CNM) Comunicaciones congresos |
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POWER OPTIMIZATION.ppt | 5,77 MB | Microsoft Powerpoint | Visualizar/Abrir |
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